1. Simplify √ (X & # 178; - 10x + 25) - (√ (4-x)) &# 178; 2. Known function y = - X & # 178; + (3x-1) x-4 (X & # 178; + 1) The same demand, the same salary

1. Simplify √ (X & # 178; - 10x + 25) - (√ (4-x)) &# 178; 2. Known function y = - X & # 178; + (3x-1) x-4 (X & # 178; + 1) The same demand, the same salary

1. 4-x ≥ 0, X ≤ 4 √ (X & # 178; - 10x + 25) - (√ (4-x)) &# 178; = √ (X-5) &# 178; - (4-x) = (5-x) - (4-x) = 12, y = - X & # 178; + (3x-1) x-4 (X & # 178; + 1) = - X & # 178; + 3x & # 178; - x-4x & # 178; - 4 = - 2x & # 178; - x-4 don't know what you want